This is a paid asset, but now you can download Motion Path Animation Editor for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
For more detail this asset from the Unity Asset Store: Click Here
Motion Path Animation Editor v2.2.1
“If possible, please buy the package to support the developer”
This tool gets the active animation clip in the animation window and visualizes the motion of objects as paths. You can modify these paths with handles if they are made of position changes. It works in both 2D and 3D views.
(This is a new version of AnimHelper. If you already have AnimHelper(v1), You can upgrade to MotionPathAnimationEditor(v2) for free. Please delete the old version before importing this version.)